79805616 has 120 divisors (see below), whose sum is σ = 239371584. Its totient is φ = 22717440.

The previous prime is 79805603. The next prime is 79805647. The reversal of 79805616 is 61650897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152331 + ... + 152853.

Almost surely, 2^79805616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79805616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119685792).

79805616 is an abundant number, since it is smaller than the sum of its proper divisors (159565968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79805616 is a wasteful number, since it uses less digits than its factorization.

79805616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 79805616 is about 8933.3989052320. The cubic root of 79805616 is about 430.5376652718.

The spelling of 79805616 in words is "seventy-nine million, eight hundred five thousand, six hundred sixteen".